3.55MM CS X 42.5MM ID BLACK BUNA 70D

This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 42.5 mm (1.673 in), a cross section of 3.55 mm (0.14 in), and an outside diameter of 49.6 mm (1.95 in), catalogued under part number H3.55X42.5. It creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, low compression set under sustained load. The material holds up against petroleum-based oils, propane and butane, and many alcohols. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to automotive brake fluid or ketones will shorten service life.

You will find this material specified across fluid power, hydraulic and pneumatic systems, and general industrial maintenance.

H3.55X42.5 ships individually. Unit weight is approximately 1.7609 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.